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Core Data: Quickest way to delete all instances of an entity
...t]];
[allCars setIncludesPropertyValues:NO]; //only fetch the managedObjectID
NSError *error = nil;
NSArray *cars = [myContext executeFetchRequest:allCars error:&error];
[allCars release];
//error handling goes here
for (NSManagedObject *car in cars) {
[myContext deleteObject:car];
}
NSError ...
How to assert two list contain the same elements in Python? [duplicate]
....result, self.expected)
if __name__ == "__main__":
unittest.main()
Side Note : Please make sure that the elements in the lists you are comparing are sortable.
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MYSQL import data from csv using LOAD DATA INFILE
...E USING FOLLOWING QUERY :
CREATE TABLE IF NOT EXISTS `survey` (
`projectId` bigint(20) NOT NULL,
`surveyId` bigint(20) NOT NULL,
`views` bigint(20) NOT NULL,
`dateTime` datetime NOT NULL
);
YOUR CSV FILE MUST BE PROPERLY FORMATTED FOR EXAMPLE SEE FOLLOWING
ATTACHED IMAGE :
If eve...
Difference between GIT and CVS
...
The main difference is that (as it was already said in other responses) CVS is (old) centralized version control system, while Git is distributed.
But even if you use version control for single developer, on single machine (single account), there are a few differences betw...
How do I select text nodes with jQuery?
...karound for jQuery's overloading of its contents() function (thanks to @rabidsnail in the comments for pointing that out), so here is non-jQuery solution using a simple recursive function. The includeWhitespaceNodes parameter controls whether or not whitespace text nodes are included in the output (...
How to programmatically disable page scrolling with jQuery
... current scroll position (don't forget horizontal axis!).
Set overflow to hidden (probably want to retain previous overflow value).
Scroll document to stored scroll position with scrollTo().
Then when you're ready to allow scrolling again, undo all that.
Edit: no reason I can't give you the code ...
Android - Setting a Timeout for an AsyncTask?
...at's why you need to call .get() from handler or from another thread to avoid main UI blocking
– Constantine Samoilenko
Aug 23 '16 at 4:27
2
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Is a colon `:` safe for friendly-URL use?
...n the hash (which will be interpreted by a controller layer on the client-side):
9 Answers
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Android; Check if file exists without creating a new one
...le with Context.openFileOutput().
Sample code (in an Activity):
public void onCreate(...) {
super.onCreate(...);
String[] files = fileList();
for (String file : files) {
if (file.equals(myFileName)) {
//file exits
}
}
}
...
How do you import a large MS SQL .sql file?
...he list of all arguments you can pass sqlcmd:
Sqlcmd [-U login id] [-P password]
[-S server] [-H hostname] [-E trusted connection]
[-d use database name] [-l login timeout] [-t query timeout]
[-h headers] [-s colseparator] [-w screen...